CN220869556U

CN220869556U - Connecting mechanism for starter

Info

Publication number: CN220869556U
Application number: CN202322703559.8U
Authority: CN
Inventors: 郑秀丽; 戴其飞
Original assignee: Ruian Feipu Motorcycle Parts Co ltd
Current assignee: Ruian Feipu Motorcycle Parts Co ltd
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2024-04-30
Anticipated expiration: 2033-10-09

Abstract

The utility model discloses a connecting mechanism for a starter, which relates to the technical field of starters and comprises a connector shell, wherein a screw shaft penetrates through the left side of the connector shell and is rotationally connected with the left side of the connector shell, the starter is fixedly connected with the left side of the connector shell, a baffle is arranged on the inner wall of the connector shell, and a chute is arranged on the inner wall of the connector shell. When the starter is used, the driving gear is pushed to move firstly and then rotate through the screw shaft to drive the driven gear shaft, and the reset spring is utilized to reversely push the driving gear to leave the driven gear shaft when the starter is not needed, so that the working principle that the starter can control the disconnected transmission is realized, the use of an electromagnetic structure is avoided, the design and manufacturing cost is reduced, the reliability of equipment is effectively improved, adjustment can be made according to specific transmission content, the adaptability of the mechanism is effectively improved, additional power is not needed, and the energy consumption required by the mechanism is reduced.

Description

Connecting mechanism for starter

Technical Field

The utility model relates to the technical field of starters, in particular to a connecting mechanism for a starter.

Background

A starter is a device for starting an internal combustion engine that assists in engine starting by delivering appropriate force and energy, and is commonly used in automobiles, motorcycles, boats, generators, and other devices and machinery that require autonomous starting.

In general, the starter is not connected coaxially to a machine such as an internal combustion engine to be started, and since the driven machine is generally operated independently after the driven machine is started, it is connected by a transmission connection mechanism which can control disconnection, and furthermore, it is generally necessary to transmit a large torque for starting the driven machine, which is achieved by a gear transmission or a belt transmission.

The existing connecting mechanism generally adopts an additional electromagnetic device to control the connection and disconnection of the starter, which requires additional electromagnetic elements, control circuits, sensors and other devices, increases the complexity of the system, is unfavorable for the reduction of the overall manufacturing cost of the starter, and in addition, the connecting mechanism can generate noise and vibration during operation, which can adversely affect the performance, service life and driving comfort of the starter and the engine, and long-term vibration can also lead to the abrasion and fatigue of the connecting mechanism, such as the gear can be worn, deformed or lose the meshing performance, which can lead to the failure of the starter to normally transmit the rotation moment, even failure or damage.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a connecting mechanism for a starter, which solves the problems that the complexity of a system is increased and the whole manufacturing cost of the starter is not reduced in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a coupling mechanism for starter, includes the connector housing, the connector housing left side runs through and rotates and be connected with the lead screw axle, connector housing left side fixedly connected with starter, connector housing inner wall is provided with the baffle, connector housing inner wall is provided with the spout, the output shaft right side fixedly connected with of starter is in the left side of lead screw axle, the lateral wall transmission of lead screw axle is connected with the screw follower, screw follower outer wall rotation is connected with bearing one, bearing one outer wall fixedly connected with driving gear, driving gear downside meshing has driven gear axle, the mating holes has been seted up to connector housing downside, the keyway has been seted up to driving gear inner wall, driving gear right side fixedly connected with bearing two, bearing two inner walls rotate and are connected with the push ring, push ring and baffle pass through reset spring elastic connection, the lead screw axle outside rotates and is connected in the baffle inboard, screw follower rear side is slided and is had the groove sleeve board, groove sleeve board front side is seted up the recess, the groove sleeve board is through spacing spring elastic connection has the slider, the groove-shaped sleeve board is connected with the slider outside the groove-shaped inner wall, the groove is slided in the slider.

Preferably, the outer wall of the thread follower is provided with a ratchet tooth profile, and the groove is matched with the tooth profile of the outer side of the thread follower.

Preferably, the side wall of the middle part of the screw shaft is in a thread shape, the two ends of the screw shaft are smooth surfaces, the side wall of the screw shaft is fixedly connected with a key, and the outer wall of the key slides on the inner wall of the driving gear.

Preferably, the left side of the return spring is fixedly connected to the right side of the push ring, and the right side of the return spring is fixedly connected to the left side of the baffle plate.

Preferably, the back side of the limiting spring is fixedly connected to the inner side of the groove-shaped sliding block, and the front side of the limiting spring is fixedly connected to the back side of the ratchet sleeve plate.

Preferably, the screw shaft side wall is rotationally connected with a lantern ring, a piston rod is fixedly connected with the rear side of the lantern ring, a hydraulic cylinder is fixedly connected with the inner wall of the connector shell, a piston is connected with the inner wall of the hydraulic cylinder, and damping fluid is arranged on the inner wall of the hydraulic cylinder.

Preferably, the hydraulic cylinder front end fixedly connected with cylinder cap, cylinder cap inner wall fixedly connected with sealing washer, sealing washer inner wall sliding connection is in the piston rod lateral wall.

Preferably, the sealing ring is made of deformable flexible materials.

(III) beneficial effects

The utility model provides a connecting mechanism for a starter. The beneficial effects are as follows:

(1) When the connecting mechanism for the starter is used, the driving gear is pushed to move firstly and then rotate through the screw shaft to drive the driven gear shaft, and the driving gear is reversely pushed to leave the driven gear shaft by the reset spring when the connecting mechanism is not needed, so that the working principle that the starter can control the disconnection transmission is realized, the cost of design and manufacture is reduced by avoiding using an electromagnetic structure, the reliability of equipment is effectively improved, adjustment can be made according to specific transmission content, the adaptability of the mechanism is effectively improved, additional power is not needed, and the energy consumption required by the mechanism is reduced.

(2) When the connecting mechanism for the starter is used, vibration of the screw shaft is transmitted to the piston rod, so that the piston rod is subjected to piston motion with damping in the hydraulic cylinder, impact and vibration force caused by mechanical collision are absorbed and dispersed, the service life of the connecting shaft and other parts is prolonged, maintenance and replacement cost is reduced, working stability and reliability are effectively improved, failure and sliding caused by vibration are effectively eliminated, driving transmission efficiency is effectively improved, energy loss is reduced, noise generated by vibration is effectively reduced through vibration reduction, experience and comfortableness of operators are improved, and influence on surrounding environment of mechanical equipment is reduced.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of a front cross-section of the overall three-dimensional structure of the present utility model;

FIG. 3 is a schematic view of an exploded perspective view of a hydraulic cylinder according to the present utility model;

FIG. 4 is an exploded perspective view of the threaded follower of the present utility model;

Fig. 5 is an exploded perspective view of the screw shaft of the present utility model.

In the figure: 1. a connector housing; 2. a starter; 3. a screw shaft; 4. a threaded follower; 5. a first bearing; 6. a drive gear; 7. a push ring; 8. a return spring; 9. a driven gear shaft; 10. a ratchet sleeve plate; 11. a limit spring; 12. a groove-shaped sliding block; 13. a collar; 14. a piston rod; 15. a hydraulic cylinder; 16. a seal ring; 17. a cylinder cover; 18. and a second bearing.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the utility model provides a connection mechanism for a starter, which comprises a connector housing 1, a screw shaft 3 is penetrated and rotatably connected at the left side of the connector housing 1, a starter 2 as a power source is fixedly connected at the left side of the connector housing 1, a baffle plate for fixing the other end of the screw shaft 3 is arranged on the inner wall of the connector housing 1, a chute is arranged on the inner wall of the connector housing 1, the right side of an output shaft of the starter 2 is fixedly connected at the left side of the screw shaft 3 so as to transmit power, a threaded driven member 4 is connected on the side wall of the screw shaft 3 in a transmission manner, the side wall of the middle part of the side wall of the screw shaft 3 is in a thread shape, two ends of the side wall of the screw shaft 3 are provided with smooth surfaces, a key is fixedly connected on the side wall of the screw shaft 3, a driving gear 6 is slidingly arranged on the outer wall of the key, the outer wall of the threaded driven member 4 is provided with a ratchet tooth profile so that the screw shaft can only rotate unidirectionally when being matched with a corresponding driven member, the outer wall of the threaded driven member 4 is rotationally connected with a first bearing 5 which ensures that the rotation of the threaded driven member 4 and the rotation of a driving gear 6 can not be mutually influenced, the outer wall of the first bearing 5 is fixedly connected with the driving gear 6, the lower side of the driving gear 6 is meshed with a driven gear shaft 9, the driven gear shaft 9 is a part of driven machinery and is not a part of the mechanism, the mechanism is introduced to better describe the working condition of the mechanism, the lower side of a connector shell 1 is provided with a matching hole which is convenient for the meshing of the driving gear 6 and the external driven gear shaft 9, the inner wall of the driving gear 6 is provided with a key slot matched with a key on a screw shaft 3, the right side of the driving gear 6 is fixedly connected with a second bearing 18 which ensures that the rotation of the driving gear 6 can not influence the movement of a reset spring 8, the inner wall of the second bearing 18 is rotationally connected with a push ring 7, the push ring 7 and a baffle plate are elastically connected through the reset spring 8, the left side of the reset spring 8 is fixedly connected to the right side of the push ring 7, the right side of the reset spring 8 is fixedly connected to the left side of the baffle, and the outer side of the screw shaft 3 is rotationally connected to the inner side of the baffle.

Further, the rear side of the threaded follower 4 slides with a ratchet sleeve plate 10, the front side of the ratchet sleeve plate 10 is provided with a groove, in principle, the ratchet sleeve plate 10 can be regarded as a pawl, a groove slide block 12 is elastically connected with the ratchet sleeve plate 10 through a limit spring 11, so that the ratchet sleeve plate 10 keeps contact with the threaded follower 4, the outer side of the ratchet sleeve plate 10 is slidably connected with the inner side of the groove slide block 12, the rear side of the limit spring 11 is fixedly connected with the inner side of the groove slide block 12, the front side of the limit spring 11 is fixedly connected with the rear side of the ratchet sleeve plate 10, the groove slide block 12 is slidably connected with the inner wall of a chute, a starter 2 is started, an output shaft of the starter 2 drives a screw shaft 3 to rotate, the screw follower 4 is driven to the right, the screw follower 4 pushes a driving gear 6 to slide into a key on the screw shaft 3 through a first bearing 5, and the lower end of the driving gear 6 is driven and rotated by the screw shaft 3, so that the driven gear 9 is driven to rotate by the lower end of the driving gear 6, and the driven gear shaft 9 is driven to rotate.

Further, the side wall of the screw shaft 3 is rotationally connected with a lantern ring 13 which is tightly sleeved on the screw shaft 3 so as to transmit vibration, the rear side of the lantern ring 13 is fixedly connected with a piston rod 14, the inner wall of the connector housing 1 is fixedly connected with a hydraulic cylinder 15, the inner wall of the hydraulic cylinder 15 is in piston connection with the piston rod 14, the inner wall of the hydraulic cylinder 15 is provided with damping fluid for slowing down the movement amplitude of the piston, the front end of the hydraulic cylinder 15 is fixedly connected with a cylinder cover 17, the inner wall of the cylinder cover 17 is fixedly connected with a sealing ring 16 for sealing the hydraulic cylinder 15 to prevent the damping fluid from leaking, the inner wall of the sealing ring 16 is slidably connected with the side wall of the piston rod 14, the sealing ring 16 is made of flexible materials which can deform, so that vibration in other directions of the shaft is weakened, during vibration is transmitted to the piston rod 14 through the lantern ring 13 during vibration reduction, the piston rod 14 is made to perform piston movement in the hydraulic cylinder 15, and the damping fluid is arranged in the hydraulic cylinder 15 to slow down the movement amplitude of the piston thereof, so that the vibration of the screw shaft 3 is slowed down.

In the utility model, when the work starts, the starter 2 is started, the output shaft of the starter 2 drives the screw shaft 3 to rotate, the threaded follower 4 on the screw shaft 3 and the ratchet sleeve plate 10 sleeved on the threaded follower 4 form a ratchet wheel and a pawl, the threaded follower 4 can not rotate due to the characteristic that the ratchet wheel can not rotate reversely, at the moment, the threaded follower 4 can be regarded as the screw follower to be driven to the right by threaded rotation, the threaded follower 4 and the ratchet sleeve plate 10 are relatively fixed to drive the grooved sliding block 12 to slide in the sliding groove on the starter 2, the threaded follower 4 also pushes the driving gear 6 to the right through the first bearing 5, so that the key groove on the driving gear 6 slides into the key on the screw shaft 3, the driving gear 6 pushes the reset spring 8 on the right side to be extruded, the lower end of the driving gear 6 contacts the driven gear shaft 9, and at the moment, the threaded follower 4 leaves the threaded surface of the screw shaft 3, and the driving gear 6 is driven and rotates by the screw shaft 3, so that the driven gear shaft 9 is driven to rotate, and the starting work is completed.

When the starter 2 is stopped, the screw shaft 3 stops rotating, the extruded return spring 8 reversely pushes the driving gear 6, the driving gear 6 pushes the screw driven member 4 leftwards, at the moment, the screw driven member 4 is in a rotatable direction, when the ratchet tooth top of the screw driven member 4 rotates to contact with the inner wall of the groove, the limit spring 11 is pressed inwards, when the ratchet tooth bottom of the screw driven member 4 rotates to contact with the inner wall of the groove, the limit spring 11 is loosened, thereby pushing the ratchet sleeve plate 10 forwards to enable the ratchet sleeve plate 10 to be close to the side surface of the screw driven member 4, after the ratchet sleeve plate 10 is kept close to the ratchet sleeve plate, the screw driven member 4 can drive the ratchet sleeve plate 10 leftwards, so that the groove-shaped sliding block 12 is driven to slide back to the initial position, the screw driven member 4 rotates on the screw of the screw shaft 3, the screw driven member 4 also moves leftwards when the screw shaft 3 rotates due to the characteristic of the screw thread, so that the driving gear 6 is driven to move leftwards to leave a key groove, and is separated from the driven gear shaft 9 from the meshing state, and the disengaging action after the driven machine is started is completed.

During operation, the driving gear 6 is meshed with the driven gear shaft 9 which is not moved, the tooth profile collides, so that the screw shaft 3 generates vibration in the horizontal direction, the vibration is transmitted to the piston rod 14 through the lantern ring 13, the piston rod 14 performs piston movement in the hydraulic cylinder 15, and damping liquid is arranged in the hydraulic cylinder 15 to slow down the amplitude of the piston movement of the hydraulic cylinder, so that the amplitude of the vibration of the screw shaft 3 is slowed down.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A connection mechanism for a starter, comprising a connector housing (1), characterized in that: the left side of the connector housing (1) penetrates through and is rotationally connected with a screw shaft (3), the left side of the connector housing (1) is fixedly connected with a starter (2), the inner wall of the connector housing (1) is provided with a baffle, the inner wall of the connector housing (1) is provided with a sliding groove, the right side of an output shaft of the starter (2) is fixedly connected with the left side of the screw shaft (3), the side wall of the screw shaft (3) is in transmission connection with a threaded driven piece (4), the outer wall of the threaded driven piece (4) is rotationally connected with a bearing I (5), the outer wall of the bearing I (5) is fixedly connected with a driving gear (6), the inner wall of the driving gear (6) is provided with a key groove, the right side of the driving gear (6) is fixedly connected with a bearing II (18), the lower side of the driving gear (6) is meshed with a driven gear shaft (9), the lower side of the connector housing (1) is provided with a matching hole, the inner wall of the bearing II (18) is rotationally connected with a push ring (7), the push ring (7) is in elastic connection with the baffle through a reset spring (8), the inner side of the bearing II is rotationally connected with a sleeve groove (10) on the outer side of the screw shaft, the driven piece is in front of the screw shaft (10), the ratchet sleeve plate (10) is elastically connected with a groove-shaped sliding block (12) through a limiting spring (11), the outer side of the ratchet sleeve plate (10) is slidably connected to the inner side of the groove-shaped sliding block (12), and the groove-shaped sliding block (12) is slidably connected to the inner wall of the sliding groove.

2. The connection mechanism for a starter according to claim 1, wherein: the outer wall of the thread follower (4) is provided with a ratchet tooth profile, and the grooves are matched with the tooth profile of the outer side of the thread follower (4).

3. The connection mechanism for a starter according to claim 1, wherein: the side wall of the middle part of the screw shaft (3) is in a thread shape, the two ends of the screw shaft are smooth surfaces, the side wall of the screw shaft (3) is fixedly connected with a key, and the outer wall of the key slides on the inner wall of the driving gear (6).

4. The connection mechanism for a starter according to claim 1, wherein: the left side of the return spring (8) is fixedly connected to the right side of the push ring (7), and the right side of the return spring (8) is fixedly connected to the left side of the baffle.

5. The connection mechanism for a starter according to claim 1, wherein: the rear side of the limiting spring (11) is fixedly connected to the inner side of the groove-shaped sliding block (12), and the front side of the limiting spring (11) is fixedly connected to the rear side of the ratchet sleeve plate (10).

6. The connection mechanism for a starter according to claim 1, wherein: the screw shaft is characterized in that a lantern ring (13) is rotationally connected to the side wall of the screw shaft (3), a piston rod (14) is fixedly connected to the rear side of the lantern ring (13), a hydraulic cylinder (15) is fixedly connected to the inner wall of the connector shell (1), the piston rod (14) is connected to the inner wall of the hydraulic cylinder (15), and damping liquid is arranged on the inner wall of the hydraulic cylinder (15).

7. The connection mechanism for a starter according to claim 6, wherein: the front end of the hydraulic cylinder (15) is fixedly connected with a cylinder cover (17), the inner wall of the cylinder cover (17) is fixedly connected with a sealing ring (16), and the inner wall of the sealing ring (16) is slidably connected to the side wall of the piston rod (14).

8. The connection mechanism for a starter according to claim 7, wherein: the sealing ring (16) is made of deformable flexible materials.